docs: def clean(self):
          """
          Validates that the values entered into the two password fields match.
          Note that an error here will end up in ``non_field_errors()`` because
          it doesn't apply to a single field.
  
          """
          if 'password1' in self.cleaned_data and 'password2' in self.cleaned_data:
              if self.cleaned_data['password1'] != self.cleaned_data['password2']:
                  raise forms.ValidationError(_('The two password fields didn\'t match.'))
          return self.cleaned_data